O'Riordan was not in court after being excused by the judge at the previous hearing.

The singer, who has since been diagnosed with suffering from bipolar disorder, admitted four offences including assault and obstructing a Garda during the incident following an Aer Lingus flight from New York's JFK airport.

As she was being arrested, O'Riordan told officers that she was an icon and the Queen of Limerick, it was claimed in court.

Shannon Airport in Ireland (Image: PA)

The trial heard she accused a Garda officer of groping her and sexually assaulting her during the arrest, a claim which has since been retracted.

A number of medical reports were given to the judge last month with the court told that medics have suggested the singer was suffering hypomania, sleep deprivation and paranoia at the time of the incident.

The members of the Irish rock band Cranberries

The 44-year-old mother of three children aged 18, 14 and 10, who lives in New York, had separated from her husband Don Burton in the months before her arrest.

Renowned for her distinctive singing voice, O'Riordan is back working in the music business now.

She was ordered by Judge Durcan to write letters of apology to all those affected in the incident while he considered sentencing.